Dockerized Postgres, load script, and exercise worksheets #4
Description
Actionable steps to improve learnability and reproducibility:
Tasks
- Add a docker-compose.yml to spin up a Postgres instance.
- Provide a script/make target to load halo-data.dump and verify tables.
- Create exercise worksheets with queries (window functions, self-joins) and expected results.
- Add a CI check that the dump can be restored and basic queries pass.
Benefits
- One-command setup and validated exercises.